package thread;
class MyBlockQueue{
    private String[] data=null;
    private int head=0;
    private int tail=0;
    private int size=0;
    public MyBlockQueue(int capacity){
        data=new String[capacity];
    }
    public void put(String elem)throws InterruptedException{
        synchronized (this) {
            while (size >= data.length) {
                this.wait();
            }
            data[tail] = elem;
            tail++;
            if (tail >=data.length) {
                tail = 0;
            }
            size++;
            this.notify();
        }
    }
    public String take()throws InterruptedException{
        synchronized (this){
            while(size==0){
                this.wait();
            }
            String ret=data[head];
            head++;
            if (head>=data.length){
                head=0;
            }
            size--;
            this.notify();
           return ret;
        }
    }
}
public class Dwmo31 {
    public static void main(String[] args) {
        MyBlockQueue queue=new MyBlockQueue(1000);
        Thread producer=new Thread(()->{
            int n=0;
            while (true){
                try {
                    queue.put(n+"");
                    System.out.println("生产元素"+n);
                    n++;
                    //Thread.sleep(1000);
               }catch (InterruptedException e){
                    throw new RuntimeException(e);
                }
            }
        });
        Thread cosumer=new Thread(()->{
            while (true){
                String n=null;
                try {
                    n=queue.take() ;
                    System.out.println("消费元素"+n);
                    Thread.sleep(1000);
                }catch (InterruptedException e){
                    throw new RuntimeException(e);
                }

            }
        });
        producer.start();
        cosumer.start();

    }
}
